# MailMerge.MergeJsonData Method

> Merges data given as a JSON string into a document template. The JSON string has to contain either a single object or an array of equally structured objects. Analyzes and uses the given object(s) as merge data in the same way as the method MergeObjects.

- **Product:** TX Text Control .NET Server
- **Section:** Reference
- **Kind:** Method
- **Introduced:** 24.0
- **Namespace:** `TXTextControl.DocumentServer`
- **Package:** `TXTextControl.TextControl.Core.SDK` (assembly `TXDocumentServer.Core.dll`, from the private NuGet feed or Text Control Offline Packages)
- **Package:** `TXTextControl.TextControl.ASP.SDK` (assembly `TXDocumentServer.dll`, from the private NuGet feed or Text Control Offline Packages)
- **.NET Framework:** reference `TXDocumentServer.dll` from the setup
- **Path:** TX Text Control .NET Server > Reference > TXTextControl.DocumentServer > MailMerge.MergeJsonData Method
- **679 words**
- **Web URL:** https://docs.textcontrol.com/tx-text-control-dotnet-server/reference/txtextcontrol-documentserver/mailmerge/mergejsondata-method/
- **LLMs URL:** https://docs.textcontrol.com/tx-text-control-dotnet-server/reference/txtextcontrol-documentserver/mailmerge/mergejsondata-method/llms.txt
- **LLMs-Full URL:** https://docs.textcontrol.com/tx-text-control-dotnet-server/reference/txtextcontrol-documentserver/mailmerge/mergejsondata-method/llms-full.txt

---

### Description

Merges data given as a JSON string into a document template. The JSON string has to contain either a single object or an array of equally structured objects. Analyzes and uses the given object(s) as merge data in the same way as the method [MergeObjects](https://docs.textcontrol.com/tx-text-control-dotnet-server/reference/txtextcontrol-documentserver/mailmerge/mergeobjects-method/llms-full.txt).

### Syntax

#### MergeJsonData(string, bool)

Merges data given as a JSON string into a document template. The JSON string has to contain either a single object or an array of equally structured objects.

```csharp
public void MergeJsonData(string json, bool append);
```

```vbnet
Public Sub MergeJsonData(json As String, append As Boolean)
```

| Parameter | Description |
|---|---|
| json | The JSON string containing the merge data. |
| append | Specifies whether the merge result should be merged into one document or split into separate documents. |

#### MergeJsonData(string)

Does the same as MergeJsonData with the parameter “append” set to true.

```csharp
public void MergeJsonData(string json);
```

```vbnet
Public Sub MergeJsonData(json As String)
```

| Parameter | Description |
|---|---|
| json | The JSON string containing the merge data. |

### Examples

The following example uses Merge Json Data in a focused Mail Merge workflow. The created object is then available to the surrounding document workflow.

```csharp
mailMerge.MergeJsonData("Quarterly report", true);
Console.WriteLine("Mail Merge is ready for use.");
```

```vbnet
mailMerge.MergeJsonData("Quarterly report", True)
Console.WriteLine("Mail Merge is ready for use.")
```

---

## Nearby

- **Previous:** [MailMerge.MergeCulture Property](https://docs.textcontrol.com/tx-text-control-dotnet-server/reference/txtextcontrol-documentserver/mailmerge/mergeculture-property/llms-full.txt)
- **Next:** [MailMerge.MergeObject Method](https://docs.textcontrol.com/tx-text-control-dotnet-server/reference/txtextcontrol-documentserver/mailmerge/mergeobject-method/llms-full.txt)